PulseAudio Tames the Linux Audio Zoo, Part 2: Page 3

(Page 3 of 3)

PulseAudio can run as an ordinary system-wide daemon if you wish. To enable this, edit /etc/default/pulseaudio like this:

That should be the opposite of the default. Then any user that needs access to the Pulse server needs to be added to the pulse-access group, including root. Then start it in the usual way:

$ sudo /etc/init.d/pulseaudio start

 * Starting PulseAudio Daemon      [ OK ]

Now when you open the PulseAudio Manager it looks like Figure 2, and aplay will play your file.

But on a multi-user system this is not the best way to run PulseAudio, according to the developers. It is better to run it per-user for these reasons: it creates a potential security hazard because it runs SUID, users can mess with other users' sound, and settings are system-wide instead of individualized. If you're on a single-user system then it doesn't matter.

If you want it to run per-user, then each user needs individual configuration and startup files. PulseAudio is already well-integrated into Gnome, and Gnome supports per-session startup, so the hard work is already done. If you're running a distribution that does not default to PulseAudio, create a symlink from Pulse's compatibility script to the ESD binary to load PulseAudio instead:

# ln -sf /usr/local/bin/esdcompat /usr/bin/esd

Verify your filepaths first, of course.

What do users of other desktop environments do? We'll get into detail on that next week. Meanwhile, KDE users can do this: stop it by running sudo /etc/init.d/pulseaudio stop, then reverse the changes to /etc/default/pulseaudio so that it does not start at boot. Then start it manually like this:

$ pulseaudio --high-priority --log-target=syslog

Check out the various userland tools, which you should find in your multimedia menu, and next week we'll learn how to configure per-user startup, learn about sinks and sources, and play networked sounds.


Carla Schroder is the author of the Linux Cookbook and the newly-released Linux Networking Cookbook, and is a regular contributor to LinuxPlanet.

This article was first published on LinuxPlanet.com.

Page 3 of 3

Previous Page
1 2 3

Comment and Contribute


(Maximum characters: 1200). You have characters left.



IT Management Daily
Don't miss an article. Subscribe to our newsletter below.

By submitting your information, you agree that datamation.com may send you Datamation offers via email, phone and text message, as well as email offers about other products and services that Datamation believes may be of interest to you. Datamation will process your information in accordance with the Quinstreet Privacy Policy.